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Gene expression after rapamycin treatment in control, REPTOR or REPTOR-BP knockdown S2 cells

ABSTRACT: The first aim was to identify genes whose transcription is induced by rapamycin feeding in Drosophila S2 cells. Secondly, the goal was to find out which contribution the transcription factors REPTOR (=CG13624) and REPTOR-BP (REPTOR-binding partner, =CG18619) has to the observed changes in expression. We thus compared gene epxression between rapamycin and control treated S2 cells in GFP, REPTOR or REPTOR-BP knockdown cells.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE55219 | GEO | 2015/04/30

SECONDARY ACCESSION(S): PRJNA238905

REPOSITORIES: GEO

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Gene expression after rapamycin treatment in control, REPTOR or REPTOR-BP knockdown S2 cells

Project description:The first aim was to identify genes whose transcription is induced by rapamycin feeding in Drosophila S2 cells. Secondly, the goal was to find out which contribution the transcription factors REPTOR (=CG13624) and REPTOR-BP (REPTOR-binding partner, =CG18619) has to the observed changes in expression. We thus compared gene epxression between rapamycin and control treated S2 cells in GFP, REPTOR or REPTOR-BP knockdown cells. 3 biological replicates from control knockdown plus/minus rapamycin and REPTOR knockdown plus/minus rapamycin; 2 biological replicates from REPTOR-BP knockdown cells plus/minus rapamycin; together those are 16 samples

2015-04-30 | E-GEOD-55219 | biostudies-arrayexpress

Gene expression data from control and REPTOR KO larvae after 6h rapamycin treatment

Project description:The first aim was to identify genes whose transcription is induced by rapamycin feeding in Drosophila larvae. Secondly, the goal was to find out which contribution the transcription factor REPTOR (=CG13624) has to the observed changes in expression. We thus compared gene epxression between rapamycin fed and control fed larvae in wild type larvae and in REPTOR KO larvae.

2015-04-30 | GSE55220 | GEO

Gene expression data from control and REPTOR KO larvae after 6h rapamycin treatment

2015-04-30 | E-GEOD-55220 | biostudies-arrayexpress

Gene expression data from control and REPTOR (=CG13624) KO male adults

Project description:The aim was to identify genes whose transcription is induced or repressed by REPTOR (=CG13624) KO in Drosophila melanogaster male adults. Data are part of the manuscript REPTOR and REPTOR-BP regulate organismal metabolism and transcription downstream of mTORC1

2015-04-30 | GSE64846 | GEO

Gene expression data from control and REPTOR (=CG13624) KO male adults

2015-04-30 | E-GEOD-64846 | biostudies-arrayexpress

Drosophila melanogaster

Project description:Gene expression after rapamycin treatment in control, REPTOR or REPTOR-BP knockdown S2 cells

| PRJNA238905 | ENA

REPTOR and REPTOR-BP Regulate Organismal Metabolism and Transcription Downstream of TORC1.

Project description:TORC1 regulates growth and metabolism, in part, by influencing transcriptional programs. Here, we identify REPTOR and REPTOR-BP as transcription factors downstream of TORC1 that are required for ∼ 90% of the transcriptional induction that occurs upon TORC1 inhibition in Drosophila. Thus, REPTOR and REPTOR-BP are major effectors of the transcriptional stress response induced upon TORC1 inhibition, analogous to the role of FOXO downstream of Akt. We find that, when TORC1 is active, it phosphorylates REPTOR on Ser527 and Ser530, leading to REPTOR cytoplasmic retention. Upon TORC1 inhibition, REPTOR becomes dephosphorylated in a PP2A-dependent manner, shuttles into the nucleus, joins its partner REPTOR-BP to bind target genes, and activates their transcription. In vivo functional analysis using knockout flies reveals that REPTOR and REPTOR-BP play critical roles in maintaining energy homeostasis and promoting animal survival upon nutrient restriction.

| S-EPMC4430829 | biostudies-literature

Transcriptomic analysis of thoraces after overexpression of an active allele of REPTOR in muscle

Project description:Purpose: identify global changes in gene expression in thorax tissues caused by an increase in activity of REPTOR in muscles. Note that the thorax of adult flies is composed mainly by muscle tissue but fat body is also present. Changes in gene expression do not exclusively reflect the muscle transcriptome Methods: To extract total RNAs for RNA-Seq experiment, we used 5-6 thoraces dissected out from both tub-Gal80ts/+ ; dMef2-GAL4/+ (Con) and tub-Gal80ts/UAS-REPTOR[ACT] ; dMef2-GAL4/+ (REPTOR), making sure the gut of these flies was completely removed. Crosses were kept at 18°C to avoid expression of REPTOR during development. Adult males were collected every 24-48 hours and incubated 3-4 days at 18°C before being shifted to 29°C. Flies were then incubated for 4 days at 29°C. After assessing RNA quality with Agilent Bioanalyzer, mRNAs were enriched by poly-A pull-down. Then, sequencing libraries constructed with Illumina TruSeq RNA prep kit were sequenced using. We multiplexed samples in each lane, which yields targeted number of single-end 75 bp reads for each sample, as a fraction of 180 million reads for the whole lane. Sequence reads were mapped back to the Drosophila genome (flybase genome annotation version r6.30) using STAR. With the uniquely mapped reads, we quantified gene expression levels using Cufflinks (FPKM values). Next, differentially expressed genes between experimental and control data were analyzed with DESeq2. Results: Gene list enrichment analysis of the downregulated thoracic transcriptome by REPTOR overexpression revealed a striking enrichment of multiple metabolic processes impinging on carbohydrate metabolism, mitochondria, glycolysis and oxidative metabolism. Also, Thor, a well-characterized target of REPTOR was upregulated and it was validated with qPCR. Conclusions: Our study indicates that REPTOR is a strong regulator of muscle metabolism in adult flies.

2023-06-01 | GSE189218 | GEO

BP-002

Project description:BP-002

| PRJEB42454 | ENA

Transcriptomic analysis of REPTOR or FoxO increased activity in muscle tissue using single nuclear RNA-seq analysis of Drosophila thoraces

Project description:Purpose: REPTOR and FoxO are two transcription factors that regulate muscle metabolism. However, these transcription factors share around 40% of target genes. Furthermore, the thorax of adult flies is composed of several tissues including muscle and fat body, making it difficult to discover direct target genes of REPTOR and FoxO specifically in muscle tissue. This experimental approach allows the identification of REPTOR-specific and FoxO-specific target genes in muscle clusters Methods: snRNA-seq analysis of dissected adult fly thoraces, when an active allele of REPTOR or an active allele of FoxO are overexpressed using a muscle-specific driver (dMef2-Gal4) Results: Identification of the transcriptional signature of each tissue present in the thorax of adult flies when REPTOR or FoxO are overexpressed in muscle. Discovery of potential direct target genes of REPTOR and FoxO in muscle tissue, as well as metabolic pathways regulated by each transcription factor. Conclusions: REPTOR and FoxO modulate distinct gene signatures in muscle tissue to regulate metabolism in adult flies.

2023-06-01 | GSE227038 | GEO

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